Over the last few days, satellites have shown forecasters that Nida has zigzagged between 18 and 20 degrees North Latitude on its somewhat erratic northern track. It has moved west, then east, and now back in a westward direction on its general track north.
After a westward movement, Nida is expected to now travel to the west of the islands of Iwo To and Chichi Jima over the next several days.
On December 1 at 4 a.m. ET (0900 UTC), Nida was now a Category One typhoon, with maximum sustained winds near 86 mph (75 knots). Winds are still gusting near 100 mph near the center of the storm. The range for typhoon storm-force winds now extend to 45 miles from the center, while tropical storm-force winds extend up to 135 miles from the center.
Nida is located about 335 miles southwest of the island of Iwo To (formerly known as Iwo Jima), near 20.6 North and 137.3 East. Nida is still trudging along at a slow rate near 5 mph in a west-northwesterly direction, but is expected to move in a more westerly direction over the next couple of days before turning north.
NASA's Aqua satellite's Moderate Imaging Spectroradiometer (MODIS) instrument captured an image of Typhoon Nida on November 30 at 4:15 UTC. The image showed the eye is now cloud-filled, one sign of a weakening storm, and since that image, Nida had weakened from a Category Two Typhoon to a Category One storm.
Forecasters at the Joint Typhoon Warning Center noted that infrared imagery like that from NASA's Atmospheric Infrared Sounder on NASA's Aqua satellite, has shown that Nida's eye has degenerated. Satellite imagery also has shown that Nida is elongating in a southwest to northeast direction, a sign that the storm can't maintain its shape and strength. Satellite imagery has also shown that dry air is entering the system, and it will wick up moisture and weaken the storm further.
NASA's CloudSat satellite gives forecasters a unique look at tropical cyclones because its Cloud Profiling Radar basically "cuts a storm in half" and looks at it from the side. What CloudSat saw in the latest imagery was that Nida's cloud tops have dropped from over 9 miles high (15 kilometers) to around 8 miles (13 kilometers) high. Those dropping cloud heights indicate that Nida doesn't have the uplift, or strong convection that it had earlier, and that's also reflected in its slowing sustained winds. There were still some areas of cloud ice (indicating highest thunderstorm tops with strongest uplift), but the areas of heavy precipitation have diminished.
Nida is expected to re-curve northeast and become an extra-tropical low within 2 to 3 days.
Text credit: Rob Gutro, NASA/Goddard Space Flight Center
Rob Gutro | EurekAlert!
New Study Will Help Find the Best Locations for Thermal Power Stations in Iceland
19.01.2017 | University of Gothenburg
Water - as the underlying driver of the Earth’s carbon cycle
17.01.2017 | Max-Planck-Institut für Biogeochemie
An important step towards a completely new experimental access to quantum physics has been made at University of Konstanz. The team of scientists headed by...
Yersiniae cause severe intestinal infections. Studies using Yersinia pseudotuberculosis as a model organism aim to elucidate the infection mechanisms of these...
Researchers from the University of Hamburg in Germany, in collaboration with colleagues from the University of Aarhus in Denmark, have synthesized a new superconducting material by growing a few layers of an antiferromagnetic transition-metal chalcogenide on a bismuth-based topological insulator, both being non-superconducting materials.
While superconductivity and magnetism are generally believed to be mutually exclusive, surprisingly, in this new material, superconducting correlations...
Laser-driving of semimetals allows creating novel quasiparticle states within condensed matter systems and switching between different states on ultrafast time scales
Studying properties of fundamental particles in condensed matter systems is a promising approach to quantum field theory. Quasiparticles offer the opportunity...
Among the general public, solar thermal energy is currently associated with dark blue, rectangular collectors on building roofs. Technologies are needed for aesthetically high quality architecture which offer the architect more room for manoeuvre when it comes to low- and plus-energy buildings. With the “ArKol” project, researchers at Fraunhofer ISE together with partners are currently developing two façade collectors for solar thermal energy generation, which permit a high degree of design flexibility: a strip collector for opaque façade sections and a solar thermal blind for transparent sections. The current state of the two developments will be presented at the BAU 2017 trade fair.
As part of the “ArKol – development of architecturally highly integrated façade collectors with heat pipes” project, Fraunhofer ISE together with its partners...
19.01.2017 | Event News
10.01.2017 | Event News
09.01.2017 | Event News
20.01.2017 | Awards Funding
20.01.2017 | Materials Sciences
20.01.2017 | Life Sciences